优质高产玉米杂交种湘康玉1号的选育

湘康玉1号湖南省作物研究所以自选自交系临1为母本，自选自交系冀丰51—2为父本杂交选育而成的单交种。湘康玉1号综合性状优良，品质优，全籽粒含蛋白质11．98％；产量高，2007～2008年参加湖南省杂交玉米区试，平均产量529．9kg，667m2，比CK临奥1号增产9．88％；抗病，抗性鉴定大斑病（3级）抗，小斑病（1级）高抗，茎腐病（病株率4．4％）抗，纹枯病（3级）抗；株型半紧凑，抗倒伏、倒折。

The Breeding of High Quality and High Yield Hybrid Maize - Xiang Kangyu NO.1

"Xiang Kangyu NO.1" is a new single-cross-hybrid maize variety, which obtained by using "Linl" as female parent and "Jifeng51-2" as male parent. "Xiang Kangyu NO.1" has great comprehensive character, high quality, high yield, great resistance to diseases and lodging. The result showed that whole grain containing protein 11.98%; high resistance to southern leaf blight, resistance to northern leaf blight, stalk rot (diseased plant rate of 4.4%)and sheath blight; the average yield of "Xiang Kangyu NO.1" was 7 948.5 kg/hm~2, and 9.88% higher than the ck "Lin'ao NO.1" inHunan maize regional test which was conducted in 2007～2008.